@article {7416,
	title = {Bivalve systematics during the 20th century},
	journal = {Journal of Paleontology},
	volume = {75},
	number = {6},
	year = {2001},
	note = {PDF},
	pages = {1119-1127},
	keywords = {bivalvia, evolution, mollusca, paleontology, systematics, taxonomy},
	author = {Schneider, Jay A.}
}
